$815 million

Hereward Holland / Reuters

A government supporter holds a banner during a speech by South Sudan's President Salva Kiir outside parliament in Juba, Jan. 23, 2012.

The price, in dollars, of the oil that South Sudan says Sudan has seized since the two countries split last year. Reutersreports that the south has started shutting down oil production amid the increasingly bitter row over oil revenue. Read more on South Sudan, here.